67 lines
1.3 KiB
C
67 lines
1.3 KiB
C
/* keycrunch.c: The opiekeycrunch() library function.
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%%% copyright-cmetz-96
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This software is Copyright 1996-2001 by Craig Metz, All Rights Reserved.
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The Inner Net License Version 3 applies to this software.
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You should have received a copy of the license with this software. If
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you didn't get a copy, you may request one from <license@inner.net>.
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History:
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Modified by cmetz for OPIE 2.4. Use struct opie_otpkey for arg.
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Created by cmetz for OPIE 2.3 using the old keycrunch.c as a guide.
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*/
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#include "opie_cfg.h"
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#if HAVE_STRING_H
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#include <string.h>
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#endif /* HAVE_STRING_H */
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#if HAVE_STDLIB_H
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#include <stdlib.h>
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#endif /* HAVE_STDLIB_H */
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#include <ctype.h>
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#include "opie.h"
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int opiekeycrunch FUNCTION((algorithm, result, seed, secret), int algorithm AND
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struct opie_otpkey *result AND char *seed AND char *secret)
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{
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int i, rval = -1;
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char *c;
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if (!result || !seed || !secret)
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return 1;
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i = strlen(seed) + strlen(secret);
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if (!(c = malloc(i + 1)))
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return -1;
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{
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char *c2 = c;
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if (algorithm & 0x10)
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while(*c2 = *(secret++)) c2++;
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while(*seed)
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if (isspace(*(c2++) = tolower(*(seed++))))
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goto kcret;
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if (!(algorithm & 0x10))
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strcpy(c2, secret);
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}
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opiehashlen(algorithm & 0x0f, c, result, i);
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rval = 0;
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kcret:
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{
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char *c2 = c;
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while(*c2)
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*(c2++) = 0;
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}
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free(c);
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return rval;
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}
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